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FR932215A - Mobile support system with formwork bars for mine galleries - Google Patents

Mobile support system with formwork bars for mine galleries

Info

Publication number
FR932215A
FR932215A FR932215DA FR932215A FR 932215 A FR932215 A FR 932215A FR 932215D A FR932215D A FR 932215DA FR 932215 A FR932215 A FR 932215A
Authority
FR
France
Prior art keywords
support system
mobile support
mine galleries
formwork
bars
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Karl Maria Groetschel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR932215A publication Critical patent/FR932215A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/0213—Assembling devices for pivoting caps upwardly

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR932215D 1946-08-13 1946-08-13 Mobile support system with formwork bars for mine galleries Expired FR932215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR932215T 1946-08-13

Publications (1)

Publication Number Publication Date
FR932215A true FR932215A (en) 1948-03-16

Family

ID=9455073

Family Applications (1)

Application Number Title Priority Date Filing Date
FR932215D Expired FR932215A (en) 1946-08-13 1946-08-13 Mobile support system with formwork bars for mine galleries

Country Status (1)

Country Link
FR (1) FR932215A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972892C (en) * 1950-12-30 1959-10-22 Aloys Vanwersch Cap connection for pit construction, preferably for longwall construction in the mine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972892C (en) * 1950-12-30 1959-10-22 Aloys Vanwersch Cap connection for pit construction, preferably for longwall construction in the mine

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